package com.wowotou.payservice.downloader.cipher;

/*-
 * #
 * Java youtube video and audio downloader
 *
 * Copyright (C) 2020 Igor Kiulian
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #
 */


class SwapFunctionV2 implements CipherFunction {

    @Override
    public char[] apply(char[] array, String argument) {
        int position = Integer.parseInt(argument);
        char c = array[0];
        array[0] = array[position % array.length];
        array[position % array.length] = c;
        return array;
    }

}
